Conditional Frequency

The ratio of a joint relative frequency to a related marginal relative frequency in a two-way table.

• Conditional Relative Frequency

• Joint Relative Frequency

• Marginal Relative Frequency

• Relative Frequency

What is the probability that a student does play a sport given they do not play an instrument? 

• .2

• .2222

• .10

• .5

What is the probability that the person picked will be a boy given they speak german? 

• .7273

• .4

• .16

• .22

According to the two-way table, a person who plays an instrument is most likely to:

• Not play an instrument

• Not play a team sport

• Play a team sport

• All of the above

Given that the grade is a B, what is the probability of the student being male?

• 6/15

• 9/15

• 6/56

• 9/44

What fraction represents the conditional probability of P(C | F)? Do not convert your answer to a decimal. Just write the fraction.

Mathematical Equivalence

ON

Answer explanation

What fraction represents the conditional probability of P(C | F)?

===== ===== ===== =====

8 = # of Croc wearing female students

13 = # of female students

P(C | F) = 8/13

P(Sandals|Pants):

• 4/20

• 6/15

• 1/2

• 2/7

P(Pizza|Senior):

• 10/15

• 4/5

• 2/3

• 10/5

What percentage of the people are women and drive SUV's?

• 56.25%

• 75%

• 83.25%

• 86.5%

What percentage of girls have blonde hair?

• 30%

• 32%

• 29%

• 40%